USTER®
HVI 1000
Instruction Manual
Uster Technologies, Inc.
Chapter 1
(3/08) Introduction
-
Page 1-4
3.1
Length/Strength Module
In the Length/Strength Module, mean and upper half mean lengths and
associated uniformities are determined.
Strength is obtained by measuring the force required to break a cotton
sample of known mass.
Elongation, the average length of distance to which the fibers extend
before breaking, is also calculated.
In Module Testing, the unit functions as a stand-alone instrument.
The Length/Strength Module consists of:
•
An automatic sample preparation mechanism
•
A brushing mechanism
•
An optical system for measuring length and uniformity
•
A clamping jaw system for measuring strength and elongation
After the cotton is placed in the sampler drum(s), the comb(s) are
automatically prepared. They slide along the instrument's comb track to
the brushing mechanism where they are brushed and moved into
position for testing.
The sampler drum(s) are located on the top of the instrument. The
vacuum box is located on the bottom-left side of the L/S cabinet.
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